Keyboard for use by disabled persons



FIG. 1 is a front elevational view of the keyboard for use by disabled persons showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is an isometric view thereof.

The broken lines shown in FIGS. 1 and 7 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a keyboard for use by disabled persons, as shown and described. 